Retrieve Israeli Ministry of Health official nutrition data for a food item by name in Hebrew or English. Input: food name (e.g. 'hummus', 'chicken breast', 'bread', or Hebrew equivalent). Returns per 100g: energy (kcal), protein, total fat, carbohydrates, dietary fiber, total sugars, alcohol, mo...
Risk signalsAccepts freeform code/query input (query)
Part of the Food Safety server.
Free to start. No card required.
AI agents call check_nutrition to retrieve information from Food Safety without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though check_nutrition only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"check_nutrition": {}
}
}See the full Food Safety policy for all 5 tools.
These attack patterns abuse exactly the kind of access check_nutrition gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Retrieve Israeli Ministry of Health official nutrition data for a food item by name in Hebrew or English. Input: food name (e.g. 'hummus', 'chicken breast', 'bread', or Hebrew equivalent). Returns per 100g: energy (kcal), protein, total fat, carbohydrates, dietary fiber, total sugars, alcohol, moisture; vitamins (A, C, E, D, K, B6, B12, thiamin, riboflavin, niacin, folate); minerals (calcium, iron, magnesium, phosphorus, zinc, selenium, sodium, potassium, choline); fats (cholesterol, saturated, mono/polyunsaturated, trans). Source: Israel Ministry of Health Nutrition Database (4,624 food items). For nutritional analysis and dietary reference. Do not use for additive safety (use check_additive) or pesticide MRLs (use check_pesticide_mrl).. It is categorised as a Read tool in the Food Safety MCP Server, which means it retrieves data without modifying state.
Register the Food Safety MCP server in PolicyLayer and add a rule for check_nutrition: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Food Safety. Nothing to install.
check_nutrition is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the check_nutrition rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for check_nutrition. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
check_nutrition is provided by the Food Safety MCP server (https://food-mcp-server.rootsbybenda.workers.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 5 Food Safety tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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